Resumo

ANAYA-ACEVEDO, Jesús A.  e  CHUVIECO-SALINERO, Emilio. VALIDATION OF THE L3JRC BURNED AREA PRODUCT ESTIMATION IN COLOMBIA FROM 2001 TO 2007. Actu Biol [online]. 2010, vol.32, n.92, pp.29-40. ISSN 0304-3584.

This document presents a validation of the global burned area product (L3JRC) in Colombia, using the method of the confusion matrix where Landsat images are used as a proxy for fieldwork. The product L3JRC is a burned area map based on remote sensing SPOT-VEGETATION data and generated by Tansey et al. in 2007. Determination of burned area using satellite data is possible because of the difference in reflectance before and after a fire. A pattern toward larger omission errors was found in the validation process, although commission errors also were present. Disregarding the type of error, it was shown that the product L3JRC underestimates 40% of the burned area of the country. With this accuracy of assessment, it was concluded that the annual average burned area in Colombia during the annual study period was 14,807 km², taking into account omission values burned area may exceed 21.000 km². Orinoquia region has more than (90%), of the total burned area of the country, where Vichada, Meta, Arauca, and Casanare were the most affected Colombian departments.

Palavras-chave : biomass burned area; Colombia; greenhouse gas emissions; remote sensing.

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